Science: The Fertile Sahara

Some 10,000 years ago, when glaciers chilled northern Europe, the Sahara
desert was a fertile, well-watered land. Among the most favored parts
of it must have been the Tassili-N-Ajjer, a plateau about 900 miles
southeast of Algiers. Today the region is one of the driest deserts on
earth and almost uninhabited, but in prehistoric and early historic
times it boiled with vigorous life. Last week French Anthropologist
Henri Lhote was back in Algiers with proof of what Tassili-N-Ajjer
(which means river plateau) was like while the rains still came.

Four Hundred Paintings. Dr. Lhote took four young painters to copy
colored drawings...